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Gefen GTB-HD4K2K-444-BLK 4×4 HDMI Matrix Switcher 4Kx2K 3840×2160@30Hz 3DTV 12-bit Deep Color RS232 / IP

SKU: GTB-HD4K2K-444-BLK
Brand: Gefen
$877.99
Brand Gefen
SKU GTB-HD4K2K-444-BLK
Weight 6.00 lbs
Warranty 3 Years
Condition New
Status Available
Expert

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Description

The GefenToolBox 4×4 Matrix Switcher is a compact HDMI matrix designed to route up to four Ultra Hi-Def sources to four Ultra HD displays. It supports resolutions up to 4K x 2K (3840 x 2160@30Hz) and handles Full HD sources as well. The unit is engineered for reliable AV distribution in environments that require HDCP-compliant signal management.

Key features include Fast Switching Technology (FST) to reduce HDMI authentication delays, full 3DTV pass-through, and 12-bit Deep Color support. The matrix passes lossless multichannel audio formats such as LPCM 7.1, Dolby TrueHD, Dolby Digital Plus, and DTS-HD Master Audio. Front-panel controls, IR remote, RS-232, Telnet/UDP, and a built-in web server provide multiple control paths.

Technically the matrix supports a maximum pixel clock of 300 MHz and handles 3840×2160@30Hz video signals with Deep Color. It maintains lip sync pass-through and advanced EDID management to ensure source/display compatibility. The unit consumes up to 13 Watts and operates in standard AV environment temperatures from 0 to 40 degrees Celsius.

Connectivity includes four locking Type A HDMI inputs and four locking Type A HDMI outputs, an RS-232 DB-9 port, a Mini-B USB port for firmware updates, and an RJ-45 Ethernet port for IP control. An IR sensor and an IR extender jack allow infrared control extensions. The included locking 5V DC power supply secures power connections for permanent installs.

Typical applications include home theater systems, multiroom installations, retail signage, sports bars, education facilities, museums, hospitals, and hotel lobbies where routing of 4K or 1080p HDMI sources to multiple displays is required. The matrix supports both HDMI and DVI endpoints via adapters and is HDCP compliant to protect protected content. Its compact footprint makes it suitable for small racks, AV cabinets, or shelf installations.

Installation is straightforward using HDMI cables for sources and displays, plus Ethernet or RS-232 for control integration. Surface-mountable hardware and a locking power connector help secure permanent installations. LED indicators show routing, FST mode, audio configuration, and EDID settings for rapid troubleshooting and routine operation.

Product Diagrams

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Specifications

Maximum Pixel Clock300 MHz
Supported Resolutions3840x2160@30Hz, 1080p
Color Depth12-bit Deep Color
3DTV Pass-throughYes
Lip SyncPass-through
Audio FormatsLPCM 7.1, Dolby TrueHD, Dolby Digital Plus, DTS-HD Master Audio
HDMI Input Connectors(4) Type A 19-pin female locking
HDMI Output Connectors(4) Type A 19-pin female locking
USB Port(1) Mini-B
RS-232 serial port(1) DB-9 female
Ethernet (IP Control) Port(1) RJ-45
IR Sensor(1) Front panel
IR Extender Port(1) 3.5mm mini-stereo jack
FST TechnologyFast Switching Technology
FST Indicators(2) LED green
Audio Indicators(2) LED green
EDID Indicators(3) LED green
Routing Indicators(16) LED green
FST Selector(1) tact-type recessed push-button
Audio Selector(1) tact-type recessed push-button
EDID Selector(1) tact-type recessed push-buttons
Routing Selectors(4) tact-type push-buttons
DC Power ConnectorLocking type
Power Supply5V DC locking power supply
Power Consumption13 Watts max
Operating Temperature+32 to +104 F / 0 to +40 C
Dimensions (W x H x D)6.9 in x 11.9 in x 1.0 in (175mm x 302mm x 26mm)
Shipping Weight6 lbs (2.7 kg)
Firmware UpgradeMini-USB, IP
MountingSurface-mountable
Color OptionsBlack, White

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Our main goal is to ensure your complete satisfaction with our service and products. If, for any reason, you are not 100% satisfied with your purchase, you can return it within 30 days of the purchase date for a full refund. Our 30-day money back guarantee applies to all of the products we sell, except for: TVs and monitors 20" and larger, Special Order merchandise, or any item indicated as non-returnable. Shipping is not refundable. Prior to returning your purchase, a Return Merchandise Authorization (RMA) number will be provided to you.

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Refunds on returned items will be issued in the same payment form as received from the customer at the time of purchase. Once we receive the product and it passes inspection, we will credit your account. Please allow 3 - 6 business days for a credit to appear on your account.

Exchanges:

If the item was sent back to us for an exchange, please allow 3 - 5 business days for the replacement to be processed.

No Returns/Exchanges on the following:

  • TVs and monitors 20" and larger
  • Special Order merchandise
  • Any item indicated on the website as non-returnable

For more information see our official Return Policy

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Return Policy

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We Offer a 30-Day Money Back Guarantee

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